Resistance Temperature GraphHardQuestion 31620
Question
For a pure semiconductor, the resistance-temperature (R-T) graph shows:
- ALinearly increasing R
- BExponentially decreasing R as T increasesCorrect
- CConstant R
- DParabolic increase
Correct answer
Exponentially decreasing R as T increases
Explanation
In semiconductors, more carriers are thermally excited at higher T, so conductivity increases and resistance decreases exponentially with T.